 Bearing clearance, 2056 build #2 |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| Chad911sc |
 Nov 21 2025, 01:23 PM
Post
#1
|
|
Member  Group: Members Posts: 217 Joined: 24-September 24 From: Florida Member No.: 28,374 Region Association: South East States  |
So I got my crank back from a different machine shop this time, and they turned it down .010 on the mains to clean up my out of roundness. I rotated it several rotations on an V-block and had no deviation. My new oversized bearing came in yesterday, and I’m checking clearances now. I plastigauged the middle bearing and I have what looks to be .0018 of clearance. Is this acceptable? Here is the pics to double check me.
My rods were right at .001, so I’m good there. Attached thumbnail(s)  
|
   |
 
|
| rfinegan |
Nov 21 2025, 01:56 PM
Post
#2
|
|
Senior Member Group: Members Posts: 1,137 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region 
|
.001 feels a little tight to me on the rods. Careful
|
|
|
|
| mepstein |
Nov 21 2025, 02:00 PM
Post
#3
|
|
914-6 GT in waiting Group: Members Posts: 20,247 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
|
I would have the machine shop do the measurements. They have measuring tools that are much better than plastigauge.
You really want to measure at every bearing. Just measuring one and hoping the others are the same can get you in trouble. |
|
|
|
|
8 User(s) are reading this topic (8 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 21st November 2025 - 02:07 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.